/Engine/Source/Editor/BlueprintGraph/Classes/K2Node_MakeStruct.h
The Struct has any property that is tagged as CPF_BlueprintVisible and is not CPF_BlueprintReadOnly
static bool CanBeMade ( const [UScriptStruct](API\Runtime\CoreUObject\UObject\UScriptStruct) * Struct, bool bForInternalUse )